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American Journal of Reproductive Immunology: AJRI

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https://www.readbyqxmd.com/read/28054411/peach-gum-polysaccharides-improve-the-spermatogenesis-of-kkay-mice-with-impaired-reproduction-system
#1
Li Qian, Wenjun Wang, Jie Song, Dezhong Chen
PROBLEM: Peach gum polysaccharides (PGPs) exhibit antioxidant and antibacterial activities. Nevertheless, the effect of PGPs on the spermatogenesis of KKAy mice with impaired reproduction system remains undetermined. METHOD OF STUDY: PGPs were extracted with hot water. KKAy mice were randomly divided into two groups, namely, control and PGPs (treated with 100 mg/kg PGPs). RESULTS: Oral administration of PGPs decreased the levels of serum triglyceride, total cholesterol, low-density lipoprotein cholesterol, fasting blood glucose, plasma insulin, and nitrate nitrogen level in the testes of KKAy mice...
January 5, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28054406/surfactant-protein-d-regulates-murine-testicular-immune-milieu-and-sperm-functions
#2
Sushama Rokade, Uday Kishore, Taruna Madan
PROBLEM: Surfactant protein D (SP-D), a pattern recognition protein that regulates inflammation and immune homoeostasis, is expressed by testicular germ cells under the influence of testosterone. This study investigates the role of SP-D in testicular immune privilege and sperm functions. METHOD OF STUDY: Testicular levels of cytokines and immunoregulatory molecules were evaluated in lipopolysaccharide (LPS)-challenged SP-D gene knockout mice (SP-D(-/-) ). Further, sperm functions were assessed by computer-assisted sperm analyser (CASA) and in vitro capacitation...
January 5, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28045216/zika-virus-and-pregnancy-an-overview
#3
Newton Sérgio de Carvalho, Beatriz Freitas de Carvalho, Bruna Dóris, Evellyn Silverio Biscaia, Cyllian Arias Fugaça, Lúcia de Noronha
In May 2015, the first episodes of Zika virus infection of the Latin America were confirmed in Brazil, where currently 196 976 cases were reported. The main route of transmission occurs by Aedes mosquitoes, and the most common symptoms are maculopapular rash, fever, conjunctivitis, polyarthralgia, and periarticular edema. However, the infection is asymptomatic in 80% of the cases. The congenital infection is characterized when the transmission to the fetus occurs during pregnancy, but the mechanisms of how the virus infects the placenta remain unclear...
January 3, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28045214/neutrophil-extracellular-traps-in-acute-chorioamnionitis-a%C3%A2-mechanism-of-host-defense
#4
Nardhy Gomez-Lopez, Roberto Romero, Yaozhu Leng, Valeria Garcia-Flores, Yi Xu, Derek Miller, Sonia S Hassan
PROBLEM: Neutrophil extracellular traps (NETs) were recently described as a mechanism for microbial killing in the amniotic cavity of women with intra-amniotic infection. Such a clinical condition can result in acute chorioamnionitis, a placental lesion characterized by the infiltration of maternal neutrophils in the chorioamniotic membranes. Herein, we investigated whether these infiltrating neutrophils form NETs in the chorioamniotic membranes from women who underwent spontaneous term or preterm labor with acute chorioamnionitis...
January 3, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28045211/vitamin-d3-pretreatment-protects-against-lipopolysaccharide-induced-early-embryo-loss-through-its-anti-inflammatory-effects
#5
Yan Zhou, Yuan-Hua Chen, Lin Fu, Zhen Yu, Mi-Zhen Xia, Xiao-Guang Hu, Hua Wang, De-Xiang Xu
PROBLEM: Increasing evidence demonstrates that inflammatory cytokines are involved in LPS-induced adverse pregnant outcomes including early embryo loss. Vitamin D3 (VitD3) has anti-inflammatory activity. We aimed to investigate the effects of vitamin D3 (VitD3) on LPS-induced early embryo loss in mice. METHOD OF STUDY: All pregnant mice except controls were intraperitoneally (ip) injected with LPS on GD7. In VitD3 alone and LPS+VitD3 groups, pregnant mice were pretreated with VitD3 by gavage daily from GD5 to GD7...
January 3, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28044385/current-concepts-in-maternal-fetal-immunology-recognition-and-response-to-microbial-pathogens-by-decidual-stromal-cells
#6
REVIEW
Anjali P Anders, Jennifer A Gaddy, Ryan S Doster, David M Aronoff
Chorioamnionitis is an acute inflammation of the gestational (extraplacental) membranes, most commonly caused by ascending microbial infection. It is associated with adverse neonatal outcomes including preterm birth, neonatal sepsis, and cerebral palsy. The decidua is the outermost layer of the gestational membranes and is likely an important initial site of contact with microbes during ascending infection. However, little is known about how decidual stromal cells (DSCs) respond to microbial threat. Defining the contributions of individual cell types to the complex medley of inflammatory signals during chorioamnionitis could lead to improved interventions aimed at halting this disease...
January 3, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28044379/the-lack-of-natural-processes-of-delivery-and-neonatal-intensive-care-treatment-lead-to-impaired-cytokine-responses-later-in-life
#7
Maria-Viola Martikainen, Leea Keski-Nisula, Hermina Jakupović, Anne M Karvonen, Juha Pekkanen, Maija-Riitta Hirvonen, Marjut Roponen
PROBLEM: Birth-related factors and neonatal treatments could affect the maturation of immune system and thus have lasting effects on immune responses. We investigated the effect of obstetric factors other than being born by cesarean section on immune responses later in life. METHOD OF STUDY: Regulatory, inflammatory, TH1 and TH2 cytokines, and a chemokine were analyzed in unstimulated and Toll-like receptors (TLRs) 2-, 3-, and 4-stimulated PBMCs of teenagers born by cesarean delivery (CD; N=79)...
January 3, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28044377/human-chorionic-gonadotropin-potentially-affects-pregnancy-outcome-in-women-with-recurrent-implantation-failure-by-regulating-the-homing-preference-of-regulatory-t-cells
#8
Liang-Hui Diao, Guan-Gui Li, Yuan-Chang Zhu, Wen-Wei Tu, Chun-Yu Huang, Ruo-Chun Lian, Xian Chen, Yu-Ye Li, Tao Zhang, Yong Huang, Yong Zeng
PROBLEM: Human chorionic gonadotropin (hCG) and regulatory T cells (Tregs) have been suggested to play important roles during the initial stage of pregnancy. However, the clinical relevance and mechanism of the effects of hCG on Treg functions in women with recurrent implantation failure (RIF) remain to be elucidated. METHOD OF STUDY: Thirty-four RIF and twenty-three control women were included in the study. Endometrial and peripheral Tregs were analyzed by immunohistochemistry and flow cytometry, respectively...
January 3, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28028879/zika-virus-coinfections-and-placenta
#9
LETTER
Alfonso J Rodriguez-Morales
No abstract text is available yet for this article.
December 28, 2016: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/27976454/zika-virus-future-reproductive-concerns
#10
Christopher M Novak, Jeanne S Sheffield, Irina Burd
The pandemic spread of Zika virus (ZIKV), a member of the flavivirus genus of the Flaviviridae family, has become a major public health concern. Reproductive specialists are particularly concerned over the spread of ZIKV as it is now known to have both sexual and transplacental routes of transmission resulting in fetal congenital abnormalities. Other members of the Flaviviridae family, hepatitis C virus (HCV) and bovine viral diarrhea virus (BVDV) (which primarily affects cattle), are well known to reproductive specialists as both sexually transmitted illnesses that are capable of vertical transmission...
December 15, 2016: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/27966815/zika-virus-infection-of-hofbauer-cells
#11
Michael K Simoni, Kellie Ann Jurado, Vikki M Abrahams, Erol Fikrig, Seth Guller
Recent studies have linked antenatal infection with Zika virus (ZIKV) with major adverse fetal and neonatal outcomes, including microcephaly. There is a growing consensus for the existence of a congenital Zika syndrome (CZS). Previous studies have indicated that non-placental macrophages play a key role in the replication of dengue virus (DENV), a closely related flavivirus. As the placenta provides the conduit for vertical transmission of certain viruses, and placental Hofbauer cells (HBCs) are fetal-placental macrophages located adjacent to fetal capillaries, it is not surprising that several recent studies have examined infection of HBCs by ZIKV...
December 14, 2016: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/27966802/zika-virus-a-new-threat-to-human-reproduction
#12
REVIEW
David Baud, Didier Musso, Manon Vouga, Marco P Alves, Nicolas Vulliemoz
Zika virus (ZIKV) was first isolated in 1947 in a rhesus monkey from the Zika forest of Uganda. Until 2007, only 14 human cases were reported. The first large human outbreak occurred in 2007 (Yap Island, Federated States of Micronesia, Pacific) followed by French Polynesia in 2013 and Brazil in 2015. The virus is mainly transmitted through Aedes mosquito bites, but sexual and post-transfusion transmissions have been reported. Symptoms include low-grade fever, maculopapular rash, conjunctivitis, myalgia, arthralgia, and asthenia...
December 14, 2016: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/27966238/mechanisms-and-possible-controls-of-the-in-utero-zika-virus-infection-where-is-the-holy-grail
#13
Kazumasa Fuwa, Satoshi Hayakawa
Zika virus infection (ZVI) is a great concern for human health because it frequently causes fetal anomalies. Little is known about pathophysiology of ZVI because it has been regarded as a mild, no life-threatening infection. However, the latest endemic in South and Central America took attention of perinatologists, microbiologists, and pathologists. Both in vivo and in vitro studies suggest neurotropic nature of Zika virus but do not clarify viral kinetics during vertical transmissions. In this review, we focus on the clinical and microbiological natures ZVI for pregnant women especially how placental barriers are broken down...
December 14, 2016: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/27885741/zika-and-pregnancy-a-comprehensive-review
#14
Adrija Hajra, Dhrubajyoti Bandyopadhyay, Lyndsey R Heise, Rajarshi Bhadra, Somedeb Ball, Shyamal Kumar Hajra
Zika virus (ZIKV) infection is a well-nurtured topic for healthcare personnel nowadays. Central nervous system involvement including microcephaly and ocular involvements has already been reported in neonates of affected pregnant ladies. In this article, we have discussed these effects on the newborns of ZIKV-infected mothers. The proposed pathogenesis, modes of transmission of this infection from mothers to the fetuses, diagnosis of the cases and precaution for the pregnant ladies have also been discussed. We have gathered the recently available data on the risk of ZIKV for expectant mothers from PubMed, https://www...
November 25, 2016: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/27878897/minimal-immune-determinants-connect-zika-virus-human-cytomegalovirus-and-toxoplasma-gondii-to-microcephaly-related-human-proteins
#15
Guglielmo Lucchese, Darja Kanduc
Aiming at the molecular definition of the relationship(s) between prenatal infections and fetal microcephaly and using pentapeptides as minimal immune determinants, we analyzed the peptide matching between proteins from infectious agents involved in microcephalic syndromes (namely Zika virus, human Cytomegalovirus, and Toxoplasma gondii) and human proteins that, when altered, have been specifically associated with microcephaly. We report that an unexpected high number of epitopic pentapeptides (ie, 34) are common to the three fetopathogenic agents and repeatedly occur throughout an important number of microcephaly-related human proteins...
November 23, 2016: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/27868318/zika-virus-infection-and-biological-treatment-for-reproductive-medicine
#16
Joanne Kwak-Kim, Jeehey Song, Michael Woo-Il Kim, Alice Gilman-Sachs
The recent Zika virus (ZIKV) epidemic is particularly challenging in the field of reproductive medicine as various biological tissues and byproducts, such as intravenous immunoglobulin G or cells are utilized during reproductive cycles, and an infected mother has an increased risk of having babies with fetal microcephaly and other congenital brain anomalies. In this review, current guidelines for prevention of sexual transmission of ZIKV, ZIKV testing, and tissue and blood product usages are summarized for physicians caring for those planning pregnancy or going through infertility treatment...
November 21, 2016: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/27868270/zika-virus-hsv-2-and-placenta
#17
LETTER
Beuy Joob, Viroj Wiwanitkit
No abstract text is available yet for this article.
November 21, 2016: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28012250/the-effect-of-ureaplasma-urealyticum-on-the-level-of-p34h-expression-the-activity-of-hyaluronidase-and-dna-fragmentation-in-human-spermatozoa
#18
Xiao-Ping Ma, Xiao-Qin Gao
BACKGROUND: To study the effect of Ureaplasma urealyticum on the level of P34H expression, the activity of hyaluronidase, and the DNA fragmentation in human spermatozoa. METHOD: Western blot was used to detect the level of P34H expression on spermatozoa.The localization of this protein on human spermatozoa was determined by indirect immunofluorescent and observed by laser scanning confocal microscope. The activity of hyaluronidase was examined by improved fixed-substrate film method...
January 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/27976427/effects-of-tslp-on-obstetrical-and-gynecological-diseases
#19
REVIEW
Yuan Zhang, Li-Ping Jin
Thymic stromal lymphopoietin (TSLP) is produced mainly by epithelial cells and was originally found to stimulate the growth and activation of B cells, but it is now shown to function on both hematopoietic and non-hematopoietic cell lineages. Despite a number of studies focusing on the role of TSLP in Th2 response for allergic disorders, it is becoming increasingly evident that TSLP may also be involved in multiple other disease states. This review will focus on recent advances on the effects of TSLP on obstetrical and gynecological diseases, including pregnancy failure, endometriosis, and cervical cancer...
January 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/27885744/glutathione-in-combination-with-trehalose-has-supplementary-beneficial-effects-on-cryopreserved-red-deer-cervus-elaphus-sperm
#20
Yan Wang, Shude Dong
OBJECTIVES: In this study, we evaluated the effects of glutathione in combination with trehalose addition to semen extenders on the quality parameters of frozen-thawed red deer (cervus elaphus) spermatozoa. METHOD OF STUDY: The semen samples collected from six mature red deer once a week were diluted with Tris-egg yolk-based extenders. The diluted semen samples were supplemented with glutathione (8 mmol L(-1) ) and or trehalose (5%, w/v), cryopreserved, thawed and then subjected to sperm quality parameter evaluation...
January 2017: American Journal of Reproductive Immunology: AJRI
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